lan8720 Standard Microsystems Corp., lan8720 Datasheet - Page 71

• Manufacturer Part Number: lan8720
• Description: Small Footprint Rmii 10/100 Ethernet Transceiver With Hp Auto-mdix Support
• Manufacturer: Standard Microsystems Corp.

Small Footprint RMII 10/100 Ethernet Transceiver with HP Auto-MDIX Support
Datasheet
SMSC LAN8720/LAN8720i
XTAL1/CLKIN
NAME
CRS_DV/MODE2
RXP
RXN
LED1/REGOFF
TXP
TXN
LED2/nINTSEL
RXER/PHYAD0
RXD0/MODE0
RXD1/MODE1
nINT/REFCLKO
NAME
NAME
RXD0/MODE0
NAME
XTAL2
Note 7.5
nRST
NAME
TXEN
(Note
See
7.5)
These levels apply when a 0-3.3V Clock is driven into XTAL1/CLKIN and XTAL2 is floating.
The maximum input voltage on XTAL1/CLKIN is VDD2A + 0.4V.
Table 7.11 Internal Pull-Up / Pull-Down Configurations
0.63 * VDD2A
0.63 * VDD2A
0.68 * VDDIO
0.68 * VDDIO
0.68 * VDDIO
0.68 * VDDIO
Table 7.12, “100Base-TX Transceiver Characteristics,” on page 72
V
0.63 * VDDIO
V
IH
IH
+1.40 V
V
(V)
(V)
IH
-
V
(V)
Table 7.7 LAN Interface Signals
IH
Table 7.9 Configuration Inputs
“10BASE-T Transceiver Characteristics,” on page
Table 7.10 General Signals
Table 7.8 LED Signals
0.39 * VDD2A
0.39 * VDD2A
0.39 * VDDIO
0.39 * VDDIO
0.39 * VDDIO
0.39 * VDDIO
DATASHEET
0.39 * VDDIO
0.39 * VDD2A
V
V
IL
IL
V
V
(V)
(V)
IL
IL
-
71
(V)
-12 mA
-12 mA
-8 mA
-8 mA
-8 mA
-8 mA
PULL-UP OR PULL-DOWN
I
I
OH
OH
-8 mA
I
OH
I
OH
Pull-down
+12 mA
+12 mA
+8 mA
+8 mA
+8 mA
+8 mA
Pull-up
+8 mA
I
I
OL
OL
I
OL
I
OL
V
V
V
OL
OL
+0.4
+0.4
+0.4
+0.4
+0.4
+0.4
OL
+0.4
(V)
(V)
(V)
72.
V
OL
Revision 1.0 (04-15-09)
VDDIO – +0.4
VDDIO – +0.4
VDDIO – +0.4
VDDIO – +0.4
VDD2A – +0.4
VDD2A – +0.4
VDDIO – +0.4
and
V
V
V
OH
OH
OH
Table 7.13,
(V)
(V)
(V)
V
OH